Breaking down lua test suite into tape tests

2 files changed, 564 insertions, 49 deletions

diff --git a/tests/lua.js b/tests/lua.js
index 3056abd..d55b412 100644
--- a/tests/lua.js
+++ b/tests/lua.js
@@ -7,84 +7,87 @@ const lauxlib  = require("../src/lauxlib.js");
 const lua      = require('../src/lua.js');
 const linit    = require('../src/linit.js');
 
+// TODO: remove
 
-test('locals.lua', function (t) {
-    let luaCode = `
-        _soft = true
-        require = function(lib) return _G[lib] end  -- NYI
-        return dofile("tests/lua-tests/locals.lua")
-    `, L;
-    
-    t.plan(2);
+if (false) {
+    test('locals.lua', function (t) {
+        let luaCode = `
+            _soft = true
+            require = function(lib) return _G[lib] end  -- NYI
+            return dofile("tests/lua-tests/locals.lua")
+        `, L;
+        
+        t.plan(2);
 
-    t.doesNotThrow(function () {
+        t.doesNotThrow(function () {
 
-        L = lauxlib.luaL_newstate();
+            L = lauxlib.luaL_newstate();
 
-        linit.luaL_openlibs(L);
+            linit.luaL_openlibs(L);
 
-        lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
+            lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
 
-    }, "Lua program loaded without error");
+        }, "Lua program loaded without error");
 
-    t.doesNotThrow(function () {
+        t.doesNotThrow(function () {
 
-        lapi.lua_call(L, 0, -1);
+            lapi.lua_call(L, 0, -1);
 
-    }, "Lua program ran without error");
+        }, "Lua program ran without error");
 
-});
+    });
 
 
-test('constructs.lua', function (t) {
-    let luaCode = `
-        _soft = true
-        require = function(lib) return _G[lib] end  -- NYI
-        return dofile("tests/lua-tests/constructs.lua")
-    `, L;
-    
-    t.plan(2);
+    test('constructs.lua', function (t) {
+        let luaCode = `
+            _soft = true
+            require = function(lib) return _G[lib] end  -- NYI
+            return dofile("tests/lua-tests/constructs.lua")
+        `, L;
+        
+        t.plan(2);
 
-    t.doesNotThrow(function () {
+        t.doesNotThrow(function () {
 
-        L = lauxlib.luaL_newstate();
+            L = lauxlib.luaL_newstate();
 
-        linit.luaL_openlibs(L);
+            linit.luaL_openlibs(L);
 
-        lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
+            lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
 
-    }, "Lua program loaded without error");
+        }, "Lua program loaded without error");
 
-    t.doesNotThrow(function () {
+        t.doesNotThrow(function () {
 
-        lapi.lua_call(L, 0, -1);
+            lapi.lua_call(L, 0, -1);
 
-    }, "Lua program ran without error");
+        }, "Lua program ran without error");
 
-});
+    });
 
 
-test('strings.lua', function (t) {
-    let luaCode = `
-        return dofile("tests/lua-tests/strings.lua")
-    `, L;
-    
-    t.plan(2);
+    test('strings.lua', function (t) {
+        let luaCode = `
+            return dofile("tests/lua-tests/strings.lua")
+        `, L;
+        
+        t.plan(2);
 
-    t.doesNotThrow(function () {
+        t.doesNotThrow(function () {
 
-        L = lauxlib.luaL_newstate();
+            L = lauxlib.luaL_newstate();
 
-        linit.luaL_openlibs(L);
+            linit.luaL_openlibs(L);
 
-        lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
+            lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
 
-    }, "Lua program loaded without error");
+        }, "Lua program loaded without error");
 
-    t.doesNotThrow(function () {
+        t.doesNotThrow(function () {
 
-        lapi.lua_call(L, 0, -1);
+            lapi.lua_call(L, 0, -1);
 
-    }, "Lua program ran without error");
+        }, "Lua program ran without error");
 
-});
+    });
+}
diff --git a/tests/test-suite/strings.js b/tests/test-suite/strings.js
new file mode 100644
index 0000000..8668897
--- /dev/null
+++ b/tests/test-suite/strings.js
@@ -0,0 +1,512 @@
+"use strict";
+
+const test     = require('tape');
+
+const lapi     = require("../../src/lapi.js");
+const lauxlib  = require("../../src/lauxlib.js");
+const lua      = require('../../src/lua.js');
+const linit    = require('../../src/linit.js');
+
+
+const checkerror = `
+    local maxi, mini = math.maxinteger, math.mininteger
+
+    local function checkerror (msg, f, ...)
+      local s, err = pcall(f, ...)
+      assert(not s and string.find(err, msg))
+    end
+`;
+
+test('testing string comparisons', function (t) {
+    let luaCode = `
+        assert('alo' < 'alo1')
+        assert('' < 'a')
+        assert('alo\\0alo' < 'alo\\0b')
+        assert('alo\\0alo\\0\\0' > 'alo\\0alo\\0')
+        assert('alo' < 'alo\\0')
+        assert('alo\\0' > 'alo')
+        assert('\\0' < '\\1')
+        assert('\\0\\0' < '\\0\\1')
+        assert('\\1\\0a\\0a' <= '\\1\\0a\\0a')
+        assert(not ('\\1\\0a\\0b' <= '\\1\\0a\\0a'))
+        assert('\\0\\0\\0' < '\\0\\0\\0\\0')
+        assert(not('\\0\\0\\0\\0' < '\\0\\0\\0'))
+        assert('\\0\\0\\0' <= '\\0\\0\\0\\0')
+        assert(not('\\0\\0\\0\\0' <= '\\0\\0\\0'))
+        assert('\\0\\0\\0' <= '\\0\\0\\0')
+        assert('\\0\\0\\0' >= '\\0\\0\\0')
+        assert(not ('\\0\\0b' < '\\0\\0a\\0'))
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing string.sub', function (t) {
+    let luaCode = `
+        assert('alo' < 'alo1')
+        assert('' < 'a')
+        assert('alo\\0alo' < 'alo\\0b')
+        assert('alo\\0alo\\0\\0' > 'alo\\0alo\\0')
+        assert('alo' < 'alo\\0')
+        assert('alo\\0' > 'alo')
+        assert('\\0' < '\\1')
+        assert('\\0\\0' < '\\0\\1')
+        assert('\\1\\0a\\0a' <= '\\1\\0a\\0a')
+        assert(not ('\\1\\0a\\0b' <= '\\1\\0a\\0a'))
+        assert('\\0\\0\\0' < '\\0\\0\\0\\0')
+        assert(not('\\0\\0\\0\\0' < '\\0\\0\\0'))
+        assert('\\0\\0\\0' <= '\\0\\0\\0\\0')
+        assert(not('\\0\\0\\0\\0' <= '\\0\\0\\0'))
+        assert('\\0\\0\\0' <= '\\0\\0\\0')
+        assert('\\0\\0\\0' >= '\\0\\0\\0')
+        assert(not ('\\0\\0b' < '\\0\\0a\\0'))
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing string.find', function (t) {
+    let luaCode = `
+        assert(string.find("123456789", "345") == 3)
+        a,b = string.find("123456789", "345")
+        assert(string.sub("123456789", a, b) == "345")
+        assert(string.find("1234567890123456789", "345", 3) == 3)
+        assert(string.find("1234567890123456789", "345", 4) == 13)
+        assert(string.find("1234567890123456789", "346", 4) == nil)
+        assert(string.find("1234567890123456789", ".45", -9) == 13)
+        assert(string.find("abcdefg", "\\0", 5, 1) == nil)
+        assert(string.find("", "") == 1)
+        assert(string.find("", "", 1) == 1)
+        assert(not string.find("", "", 2))
+        assert(string.find('', 'aaa', 1) == nil)
+        assert(('alo(.)alo'):find('(.)', 1, 1) == 4)
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing string.len and #', function (t) {
+    let luaCode = `
+        assert(string.len("") == 0)
+        assert(string.len("\\0\\0\\0") == 3)
+        assert(string.len("1234567890") == 10)
+
+        assert(#"" == 0)
+        assert(#"\\0\\0\\0" == 3)
+        assert(#"1234567890" == 10)
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing string.byte/string.char', function (t) {
+    let luaCode = `
+        assert(string.byte("a") == 97)
+        assert(string.byte("\\xe4") > 127)
+        assert(string.byte(string.char(255)) == 255)
+        assert(string.byte(string.char(0)) == 0)
+        assert(string.byte("\\0") == 0)
+        assert(string.byte("\\0\\0alo\\0x", -1) == string.byte('x'))
+        assert(string.byte("ba", 2) == 97)
+        assert(string.byte("\\n\\n", 2, -1) == 10)
+        assert(string.byte("\\n\\n", 2, 2) == 10)
+        assert(string.byte("") == nil)
+        assert(string.byte("hi", -3) == nil)
+        assert(string.byte("hi", 3) == nil)
+        assert(string.byte("hi", 9, 10) == nil)
+        assert(string.byte("hi", 2, 1) == nil)
+        assert(string.char() == "")
+        assert(string.char(0, 255, 0) == "\\0\\255\\0")
+        assert(string.char(0, string.byte("\\xe4"), 0) == "\\0\\xe4\\0")
+        assert(string.char(string.byte("\\xe4l\\0óu", 1, -1)) == "\\xe4l\\0óu")
+        assert(string.char(string.byte("\\xe4l\\0óu", 1, 0)) == "")
+        assert(string.char(string.byte("\\xe4l\\0óu", -10, 100)) == "\\xe4l\\0óu")
+
+        assert(string.upper("ab\\0c") == "AB\\0C")
+        assert(string.lower("\\0ABCc%$") == "\\0abcc%$")
+        assert(string.rep('teste', 0) == '')
+        assert(string.rep('tés\\00tê', 2) == 'tés\\0têtés\\000tê')
+        assert(string.rep('', 10) == '')
+
+        if string.packsize("i") == 4 then
+          -- result length would be 2^31 (int overflow)
+          checkerror("too large", string.rep, 'aa', (1 << 30))
+          checkerror("too large", string.rep, 'a', (1 << 30), ',')
+        end
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing repetitions with separator', function (t) {
+    let luaCode = `
+        assert(string.rep('teste', 0, 'xuxu') == '')
+        assert(string.rep('teste', 1, 'xuxu') == 'teste')
+        assert(string.rep('\\1\\0\\1', 2, '\\0\\0') == '\\1\\0\\1\\0\\0\\1\\0\\1')
+        assert(string.rep('', 10, '.') == string.rep('.', 9))
+        assert(not pcall(string.rep, "aa", maxi // 2 + 10))
+        assert(not pcall(string.rep, "", maxi // 2 + 10, "aa"))
+
+        assert(string.reverse"" == "")
+        assert(string.reverse"\\0\\1\\2\\3" == "\\3\\2\\1\\0")
+        assert(string.reverse"\\0001234" == "4321\\0")
+
+        for i=0,30 do assert(string.len(string.rep('a', i)) == i) end
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing tostring', function (t) {
+    let luaCode = `
+        assert(type(tostring(nil)) == 'string')
+        assert(type(tostring(12)) == 'string')
+        assert(string.find(tostring{}, 'table:'))
+        assert(string.find(tostring(print), 'function:'))
+        assert(#tostring('\\0') == 1)
+        assert(tostring(true) == "true")
+        assert(tostring(false) == "false")
+        assert(tostring(-1203) == "-1203")
+        assert(tostring(1203.125) == "1203.125")
+        assert(tostring(-0.5) == "-0.5")
+        assert(tostring(-32767) == "-32767")
+        if math.tointeger(2147483647) then   -- no overflow? (32 bits)
+          assert(tostring(-2147483647) == "-2147483647")
+        end
+        if math.tointeger(4611686018427387904) then   -- no overflow? (64 bits)
+          assert(tostring(4611686018427387904) == "4611686018427387904")
+          assert(tostring(-4611686018427387904) == "-4611686018427387904")
+        end
+
+        if tostring(0.0) == "0.0" then   -- "standard" coercion float->string
+          assert('' .. 12 == '12' and 12.0 .. '' == '12.0')
+          assert(tostring(-1203 + 0.0) == "-1203.0")
+        else   -- compatible coercion
+          assert(tostring(0.0) == "0")
+          assert('' .. 12 == '12' and 12.0 .. '' == '12')
+          assert(tostring(-1203 + 0.0) == "-1203")
+        end
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing string.format', function (t) {
+    let luaCode = `
+        x = '"ílo"\\n\\\\'
+        assert(string.format('%q%s', x, x) == '"\\\\"ílo\\\\"\\\\\\n\\\\\\\\""ílo"\\n\\\\')
+        assert(string.format('%q', "\\0") == [["\\0"]])
+        assert(load(string.format('return %q', x))() == x)
+        x = "\\0\\1\\0023\\5\\0009"
+        assert(load(string.format('return %q', x))() == x)
+        assert(string.format("\\0%c\\0%c%x\\0", string.byte("\\xe4"), string.byte("b"), 140) ==
+                      "\\0\\xe4\\0b8c\\0")
+        assert(string.format('') == "")
+        assert(string.format("%c",34)..string.format("%c",48)..string.format("%c",90)..string.format("%c",100) ==
+               string.format("%c%c%c%c", 34, 48, 90, 100))
+        assert(string.format("%s\\0 is not \\0%s", 'not be', 'be') == 'not be\\0 is not \\0be')
+        assert(string.format("%%%d %010d", 10, 23) == "%10 0000000023")
+        assert(tonumber(string.format("%f", 10.3)) == 10.3)
+        x = string.format('"%-50s"', 'a')
+        assert(#x == 52)
+        assert(string.sub(x, 1, 4) == '"a  ')
+
+        assert(string.format("-%.20s.20s", string.rep("%", 2000)) ==
+                             "-"..string.rep("%", 20)..".20s")
+        assert(string.format('"-%20s.20s"', string.rep("%", 2000)) ==
+               string.format("%q", "-"..string.rep("%", 2000)..".20s"))
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing %q', function (t) {
+    let luaCode = `
+        do
+          local function checkQ (v)
+            local s = string.format("%q", v)
+            local nv = load("return " .. s)()
+            assert(v == nv and math.type(v) == math.type(nv))
+          end
+          checkQ("\\0\\0\\1\\255\\u{234}")
+          checkQ(math.maxinteger)
+          checkQ(math.mininteger)
+          checkQ(math.pi)
+          checkQ(0.1)
+          checkQ(true)
+          checkQ(nil)
+          checkQ(false)
+          checkerror("no literal", string.format, "%q", {})
+        end
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing embedded zeros error', function (t) {
+    let luaCode = `
+        assert(string.format("\\0%s\\0", "\\0\\0\\1") == "\\0\\0\\0\\1\\0")
+        checkerror("contains zeros", string.format, "%10s", "\\0")
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing format x tostring', function (t) {
+    let luaCode = `
+        assert(string.format("%s %s", nil, true) == "nil true")
+        assert(string.format("%s %.4s", false, true) == "false true")
+        assert(string.format("%.3s %.3s", false, true) == "fal tru")
+        local m = setmetatable({}, {__tostring = function () return "hello" end,
+                                    __name = "hi"})
+        assert(string.format("%s %.10s", m, m) == "hello hello")
+        getmetatable(m).__tostring = nil   -- will use '__name' from now on
+        assert(string.format("%.4s", m) == "hi: ")
+
+        getmetatable(m).__tostring = function () return {} end
+        checkerror("'__tostring' must return a string", tostring, m)
+
+
+        assert(string.format("%x", 0.0) == "0")
+        assert(string.format("%02x", 0.0) == "00")
+        assert(string.format("%08X", 0xFFFFFFFF) == "FFFFFFFF")
+        assert(string.format("%+08d", 31501) == "+0031501")
+        assert(string.format("%+08d", -30927) == "-0030927")
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});
+
+
+test('testing longest number that can be formatted', function (t) {
+    let luaCode = `
+        do
+          local i = 1
+          local j = 10000
+          while i + 1 < j do   -- binary search for maximum finite float
+            local m = (i + j) // 2
+            if 10^m < math.huge then i = m else j = m end
+          end
+          assert(10^i < math.huge and 10^j == math.huge)
+          local s = string.format('%.99f', -(10^i))
+          assert(string.len(s) >= i + 101)
+          assert(tonumber(s) == -(10^i))
+        end
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        linit.luaL_openlibs(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(checkerror + luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lapi.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+
+});